<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
window.onload=function(){
	var trs=document.querySelectorAll("tr")
	for(var i=1;i<trs.length;i++)
		if(i%2==0){
			trs[i].style.background="blue"
		}
}
</script>
</head>
<body>
<%
for(int i=1;i<5;i++){
	out.println(i);
	
}
%>
<table border="1" width=100%>
<%
for(char c='a';c<'z';c++){
	%>
	<tr><td><%=c%></td></tr><br>
	<%
}
%>
</table>
</body>
</html>